Hydrazine hydrate (1:1) → HCID 178452251, compound

Participants

Reaction Steps

To the compound tert-butyl 4-(1-(dimethylamino)-3-oxo-3-phenylprop-1-en-2-yl)piperazine-1-carboxylate (4 g) dissolved in ethanol (40 ml), and hydrazine hydrate (1.17 g) was added and the reaction mixture was refluxed for 6 hrs with vigorous stirring. The progress of reaction was monitored by TLC. After consumption of starting material, the reaction mixture was cooled to room temperature and concentrated under reduced pressure to afford tert-butyl 4-(3-phenyl-1H-pyrazol-4-yl)piperazine-1-carboxylate.

Provenance & Evidence